Type-writing machine.



C. F. LUNDEBERG.

TYI E WRITING MACHINE.

APPLICATION FILED 0CT.29.1910.

1 ,1 24, 483 Patented Jan. 12, 1915.

remote from the pivotal points of said dogs to release the platen. 13y mounting the wedge on the axle a compact structure is obtained and the resistance of one releasing lever to the wedge is opposed to the other, to prevent its binding on the axle.

Variations may be resorted to within the scope of the invention.v

Having thus described my invention, ll

claim:

1. In a typewriting machine, the combination with a line-spacing wheel, platen and platen axle, said platen and axle being rotatable relatively to said line-spacing wheel, of dogs connected with the platen and nornially pressed against the line-spacing wheel, levers, the outer ends of which engage the dogs near their outer ends, and a wedge pressed between the inner ends of said levers to release the dogs. I

2. In a typewriting machine, the combination with a line-spacing wheel. platen and platen axle, said platen and axle being rotatable relatively to saidline-spacing wheel, of'dogs connected with the platen and normally pressed against the line-spacing wheel, levers, the outer ends of which engage the dogs near their outer ends, and a wedge I pressed between the inner ends of said levers to release the dogs, the inner ends of said levers being beveled.

3. In a typewriting machine, the combination with a line-spacing wheel, platen and platen axle, said platen and axle being r0 tatable relativelyxto said line-spacingwheel, of a clutch mechanism including a dog engaging the line-spacing wheel, to connect the spacing wheel and. platen, an apertured cap for said clutch mechanism, a releasing lever pivoted to the cap. the outer end of the lever projecting through the aperture to engage the dog} and an axially slidable cam pressed against the inner end of the lever.

4. 'In a typewriting machine, the combination with a line-spacing wheel, platen and platen axle, said platen and axle being rotatable relatively to said line-spacing wheel, oi a clutch mechanism including a dog engagingthe linespa'cing wheel, to connect the spacing wheel and platen, a cam sliding on the axle, a finger piece controlling the cam,-

and a lever, one end of which is engaged by the cam to, press the opposite end against the free end of the dog to release the clutch.

5. The eombinationwith a platen and a. line-space wheel, of a-platen axle, a drum upon said line-space wheel and having a smooth periphery, a pair of pivoted selfbinding dogs having ends or bits which frietionallv engage said smooth periphery, a pair of releasing levers, one for each of said dogs, and means movable upon the platen axle to operate said levers.

6. The combination with a platen and a.

line-space wheel. of a platen axle, a drum operate said levers; said levers engaging said dogs near the tips of the latter, and extending close to said platen axle to be engaged by said cam.

7. In a typewriting machine, the combination with a platen, of a line-space wheel for said platen, a pair of pivoted (legs for connecting said line-space .wheel and said platen so that they will rotate in unison, a pair of levers arranged to rock in a plane at right angles to the axis of said platen, and means moving in the longitudinal direction of the axis of said platen for rocking said levers; said levers havingout-turned ends to engage said means and inturned ends to engage said dogs.

, 8. The combination with a platen, a platen axle, and a line-space wheel having a flange thereon, of means forming a casing on which the line-space wheel is mounted for rotation relatively to the platen, clutch dogswithin said casing and movable into and out of frictional contact with said; Wheel, "levers pivoted on said casing and extending into position to operate the clutch dogs, and means located outside the casing to actuate said levers.

9. In a typewriting machine, the combination with a platen, of a line-space wheel for said platen, a pair of self-binding pivoted friction-dogs for connecting saidline-space wheel and said platen so thatthey will rotate in unison, releasing means arranged near the platen axis and movable in.the longitudinal direction of said axis, and a pair of levers for actuating said-dogs, the inner ends of said levers lying in the path of said releasing means, whereby said leversare simultaneously rocked, and the opposite ends of said levers engaging the outer ends of said dogs to swing them out of connection with said line-space wheel.

10. The combination with a roller platen and a line-space wheel, of a clutch coinprising a clutch dog connecting said line-space wheel to said platen, a casing in'closing said dog, releasing means concentric tothe platen axis and movable longitudinally thereof, exterior to said casing, and a separate lever arranged to rock freely between said dog and the releasing means to operate the former by the latter, one end of said lever lying means, and its other end engaging said dog to press it out of connection with said linespace wheel. i

11. The combinationwith a rollerplaten and a line-space wheel, ofa clutch comprisin the pathof movement of said releasing 12a masses ing a. pair of clutch dogs connecting said linespace Wheel to said platen, a casing inclnsing said dogs, releasing means concentrio to the platen axis and movable longitudinally thereof, exterior to said casing, and a pair of separate levers arranged respectively to rock freely between said dogs and the releasing means to operate the former by the latter, corresponding ends of said levers lying in the path of movement of said releasing means, and their other ends respectively engaging said dogs to press lalsrelafivelyto said platen, of a frictionclnfteh comprising a pair of self-binding pivoted each atone end and outwardly engaging said line-space Wheel at their opposite ends, releasing means arranged near thepl'aten axle, and a pair of levers intermediate said releasing means and dogs to actuate the latter at their outer ends, the 1nner ends of said levers being engaged by said releasing means to rock said levers, to prw the dogs out of their clutch engagement.

The combination with a platen. an axle therefor, and a line-space Wheel revoluble relatively to said platen, of a frictionclntch comprising a pair of self-binding dogs pivoted each at one end and outwardly engaging said linc-Spacc Wheel at their opposite ends, releasing means comprising a wedge slidable longitudinally of the platen axle and arranged near said axle, and a pair pivotal levers intermediate said releasing means and dogs to actuate'the latter, said levers heing engaged at their inner ends by said wedge and rockin in a plane transverse to the movement said wedge, whereby said levers are caused at their outer ends to press the dogs inwardly out of clutching engagement.

15. The combination with a platen, an axle therefor, and a line-space'whecl revoluble relatively to said platen, of a clutch comprising a dog pivoted at one end and engaging said line-space wheel at its opposite end, a pivotal lever having one end engaging with said dog to release the latter, the planes of movement of said dog and lever being parallel to each other and transverse to the platen axis, and means movable longitudinally of the platen axle to actuate said lever,

the other end of said lever being in the path of said means to be engaged thereby.

16. The combination with a platen, an axle therefor, and a line-space wheel revoluble relatively to said platen, of a clutch comprising a pair of dogs pivoted each at 5 one end and engaging said line-space wheel at their opposite ends, a pair of pivotal levers each respectively engaging at one end with a dog to release said dogs, the planes of movement of said dogs and levers being par allel to each other and transverse to the platen axle, and means movable longitudinally of the platen axle to actuate said levers, the other ends of said levers being in the path of said means to be engaged thereby.

1'4". The combination with a platen, an axle therefor, and a line-space wheel revoluble relatively to said platen, of a. pair of piv otal dogs movable in a plane transverse to the platen axis into engagement with said line-space Wheel, pivotal levers movable in a plane parallel with the plane of movement of said dogs to engage the dogs at points distant from their 'fulcrums, and means movable transversel of said levers to rock them, causing said evers to thereby release said dogs from clutching engagement with said line-space Wheel.

CARL F. LUNDEBERG. Witnesses;

FRANK A. Coon, W. M. Brenna/ran. 

